CVE-2023-26463

Description

strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named "public" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.

How to fix CVE-2023-26463

To remediate CVE-2023-26463, upgrade the affected package to a fixed version below.

• —upgrade to 5.9.10-r0 or later
• —upgrade to 5.9.8-4 or later

Is CVE-2023-26463 being exploited?

Moderate — EPSS is 11.8%. Track this CVE but it's not at the top of the prioritisation list.

Affected packages (2)

• from 0, < 5.9.10-r0
• from 0, < 5.9.8-4

CVSS scores

References (2)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2023-26463
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2023-26463